Bud question for ya please. I am piecing together a project I've had on the back burner for several years and I am having one challenge. I'd like to put a couple quick disconnects directly onto an XSPC dual bay resi which has a d5 pump attached to it. Is this the correct fitting I'm wanting or not?
I am doing a hard temper copper piping system but it needs to have unions somewhere in the loop or it will be impossible to install/remove.

It's the G 3/8 comment in the description that is throwing me off.
Thanks!